@Asif Iqbal..I'm working on battery aging control ...but initializing swarmsize at different interal I found two optimal value ,from this two I should find which one is the right optimal point .In order to do this I 'm thinking whether is possible to extract the information of the initial particle present in the swarm or I should think to do in other way .Is there any other way I could apply.Also see the file I have attached below.Thank u.